FM-2: Filter Monitor with Volumizer - HM Digital

Quick Overview

The FM-2 RO Filter Monitor with Volumizer tracks up to five filter stages at once by time and volume. The monitor allows you to create filter change points at each stage at an individual point in the future or at a specific water volume. When the pre set points are reached the FM-2 will alert you that it's time to change a particular stage. This is a great unit for maintaining your RO Unit.

Ensure it is set up correctlyBy jokerman826on 2/10/2017

jokerman826 would recommend this product to a friend

I havr had this thing a while. I have seen a lot of bad reviews on this thing. I was very frustrated with it today. I replaced the filters and batteries and could not get the volumiz er to turn on. I gave up after a while and just set it up to count the months.

I went back to it later on and went through the directions again. disconnect the sensor, remove a battery, reconnect the sensor and then reinstall the battery (while you have flow). didn't work no matter how many times I did it. I finally decided to take down the sensor to make sure it wasn't broken inside. I noticed this little arrow on the sensor to indicate flow direction. I put the sensor back together and the reinstalled in the correct ditection. I redid the volumizer setup and bam, it worked.

To sum it all up. set up the flow senor in the correct direction. I repeat set up the sensor in the correct direction.

I gave it a 3 star review because of the lack of detailed documentation regarding the setup of this item.

Does not workBy Chrison 1/19/2017

Chris wouldn't recommend this product to a friend

As noted by other reviewers, I am extremely disappointed that this product does not work. I have owned this for over a year now. I have tried even reversing to see if perhaps is labeled backwards, but no improvement.

I run a 110 gallon reef and a 20 gallon quarantine for almost a year now. Based on the volumizer, I have only moved 450 gallons of raw (untreated) water. This is before the RO rejection. I have now been though 600 gallons of salt mind you, and I go through 10 gallons of RO/DI a week. These number are post-RO, so figure I waste 2-3 gallons of water for every gallon produced. I should be seeing 4,400 gallons of water but the unit shows 450.

I was going to contact BRS, but seeing the comments above I decided it was not worth my time.

Very Happy with the ProductBy Ramturbodon 9/26/2016

Ramturbod would recommend this product to a friend

I wanted to be able to monitor my RO/DI system for changes in media and be able to see how much water is actually be used overall. So far I have been very please. I found that I am producing one gallon of product to 4 gallons of total water. The unit was very easy to install and did not have any problems in the setup.

Doesn't workBy Bigbubbatubbaon 1/18/2016

Bigbubbatubba wouldn't recommend this product to a friend

What a great idea! Unfortunately the product does not appear to work. I sent the first one back, received a replacement, and. same thing happened - only let me adjust time for one channel and no volumizer function at all. So returned it and they reshuffled another. This is my third unit and absolutely the same identical problem as the first two units. Shame on BRS for making me call the manufacture like it was something I was doing. Bad product...

It didn't work for me.By Markon 1/2/2016

Mark wouldn't recommend this product to a friend

I printed the on-line instructions. Spent a lot time learning. Tried off and on for over a month. The volume never counted. I unplugged the flow sensor, removed battery etc. I programmed all 5 stages. None of them ever counted. This product is discontinued. I can see why.

Great tool to monitor your Filter usageBy Xavieron 11/21/2015

Xavier would recommend this product to a friend

Just make sure that everything is connected prior to Battery install. if not the voluminizer will not show on screen, I lost 20 min realizing that ! (stupid of me)

Save moneyBy Joseon 1/19/2015

Jose would recommend this product to a friend

Great add on works perfectly

Just a counterBy Paulon 10/22/2014

Paul would recommend this product to a friend

I wish these were cheaper as I only use them to count gallons. I put 2 of them on, one before my filters and one after my RO membrane. It's perfect as it tells me how much water I've made, how much water I've used, so I know my ratio, and when I need to change out my filters and gives me an idea of how much water I've sent through my resin so I have an idea of when to change it. Works for me.

an item to keep you on pointBy turbotone on MRon 1/15/2014

turbotone on MR would recommend this product to a friend

this item is great for a forgetful person.. if this is you get this item!! lol its me for sure but how it benefits you is by monitoring the gallons you use on some of the filters rather then time.. i own a 5 stage system (pre filter, chloraplus carbon filter, matrix carbon filter, 75 gpd membrane and 75 gpd membrane with 2 di stages that i don't monitor because i can visible see and i also have dual tds meter monitoring both of them) pre filters i would change every three months and carbons every 6 months as a rule of thumb.. with this system you change pre filters every 3000,carbon every 6 months membranes are on a time schedule of every 36 months.. i haven't changed my pre filter yet and its been 6 months..just got to the 1200 gallon mark. it makes sense bc I'm running a 75 gallon mixed reef with a 30 sump. i do a 10 gallon water change per week and fill up my 10 gallon ato tank at the same time using about 9 gallons per week total use about 20 gallons a week… i use to do 20 gallon water changes a week at first… keep in mind i have it monitoring after the booster pump but before the very first filter… definitely an investment long term due to the savings in just filter use.

Looks goodBy BobbyTon 12/8/2013

BobbyT would recommend this product to a friend

I think this is a very important device to install on any RO unit.
Everything is working great so far

I would highly recommend for someone that has muliple statages of filter to change a different times.By Kennethon 11/9/2013

Kenneth would recommend this product to a friend

i highly recommend this tool. It helps to keep track of how much water you are going through, so no more guessing on when to change the filter or how much life you got out of the filter. You can setup a separate checker for each of your stages. I have color changing DI so i know when it needs to be changed, but I still like to know how many gallon of DI water was produced so that I can keep track of my expenses and how the system is functioning.
a

DOABy Russelon 10/29/2013

Russel wouldn't recommend this product to a friend

The unit has two modes - timer and volumizer. Obviously the more desirable function for the price is the volumizer. Unfortunately the unit I received never detects any flow rate. I was able to get it to detect the flow meter by reinserting the battery - but no matter where I put the unit on my RODI system, it never detects any flow. I even tried blowing air into the flow meter just to ensure the impeller worked - heard it spin, but no reading. Contacted manufacturer to see what the next steps are.... probably going to have to pay return shipping.

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Product Questions

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Hi, in case of battery replacement or outage will the devise memorise my own setup?

Question by: Ghassan on Jan 17, 2017 12:19:00 PM

Great question! The unit will not save your settings after the battery is removed. You will need to reset the unit to your settings once the battery is replaced. :-)

Would this work with the water saver upgrade kit? Will the volumizer get confused?

Question by: Kevin on Dec 23, 2013 6:12:00 AM

Hi Kevin,
The volumizer only records the water going into the RO/DI unit and it will continue to do so. Since your filters are rated for the amount of total water they are processing and that will remain the same, the volumizer is still good to go (you'll just find that of that total water processed more of it is product water vs waste now so you don't have to run the unit as long to get the same amount of product water). Hope that makes sense!

Reviews

Ensure it is set up correctlyBy jokerman826 on 2/10/2017

jokerman826 would recommend this product to a friend

I havr had this thing a while. I have seen a lot of bad reviews on this thing. I was very frustrated with it today. I replaced the filters and batteries and could not get the volumiz er to turn on. I gave up after a while and just set it up to count the months.

I went back to it later on and went through the directions again. disconnect the sensor, remove a battery, reconnect the sensor and then reinstall the battery (while you have flow). didn't work no matter how many times I did it. I finally decided to take down the sensor to make sure it wasn't broken inside. I noticed this little arrow on the sensor to indicate flow direction. I put the sensor back together and the reinstalled in the correct ditection. I redid the volumizer setup and bam, it worked.

To sum it all up. set up the flow senor in the correct direction. I repeat set up the sensor in the correct direction.

I gave it a 3 star review because of the lack of detailed documentation regarding the setup of this item.

Does not workBy Chris on 1/19/2017

Chris wouldn't recommend this product to a friend

As noted by other reviewers, I am extremely disappointed that this product does not work. I have owned this for over a year now. I have tried even reversing to see if perhaps is labeled backwards, but no improvement.

I run a 110 gallon reef and a 20 gallon quarantine for almost a year now. Based on the volumizer, I have only moved 450 gallons of raw (untreated) water. This is before the RO rejection. I have now been though 600 gallons of salt mind you, and I go through 10 gallons of RO/DI a week. These number are post-RO, so figure I waste 2-3 gallons of water for every gallon produced. I should be seeing 4,400 gallons of water but the unit shows 450.

I was going to contact BRS, but seeing the comments above I decided it was not worth my time.

Very Happy with the ProductBy Ramturbod on 9/26/2016

Ramturbod would recommend this product to a friend

I wanted to be able to monitor my RO/DI system for changes in media and be able to see how much water is actually be used overall. So far I have been very please. I found that I am producing one gallon of product to 4 gallons of total water. The unit was very easy to install and did not have any problems in the setup.

Doesn't workBy Bigbubbatubba on 1/18/2016

Bigbubbatubba wouldn't recommend this product to a friend

What a great idea! Unfortunately the product does not appear to work. I sent the first one back, received a replacement, and. same thing happened - only let me adjust time for one channel and no volumizer function at all. So returned it and they reshuffled another. This is my third unit and absolutely the same identical problem as the first two units. Shame on BRS for making me call the manufacture like it was something I was doing. Bad product...

It didn't work for me.By Mark on 1/2/2016

Mark wouldn't recommend this product to a friend

I printed the on-line instructions. Spent a lot time learning. Tried off and on for over a month. The volume never counted. I unplugged the flow sensor, removed battery etc. I programmed all 5 stages. None of them ever counted. This product is discontinued. I can see why.

Great tool to monitor your Filter usageBy Xavier on 11/21/2015

Xavier would recommend this product to a friend

Just make sure that everything is connected prior to Battery install. if not the voluminizer will not show on screen, I lost 20 min realizing that ! (stupid of me)

Save moneyBy Jose on 1/19/2015

Jose would recommend this product to a friend

Great add on works perfectly

Just a counterBy Paul on 10/22/2014

Paul would recommend this product to a friend

I wish these were cheaper as I only use them to count gallons. I put 2 of them on, one before my filters and one after my RO membrane. It's perfect as it tells me how much water I've made, how much water I've used, so I know my ratio, and when I need to change out my filters and gives me an idea of how much water I've sent through my resin so I have an idea of when to change it. Works for me.

an item to keep you on pointBy turbotone on MR on 1/15/2014

turbotone on MR would recommend this product to a friend

this item is great for a forgetful person.. if this is you get this item!! lol its me for sure but how it benefits you is by monitoring the gallons you use on some of the filters rather then time.. i own a 5 stage system (pre filter, chloraplus carbon filter, matrix carbon filter, 75 gpd membrane and 75 gpd membrane with 2 di stages that i don't monitor because i can visible see and i also have dual tds meter monitoring both of them) pre filters i would change every three months and carbons every 6 months as a rule of thumb.. with this system you change pre filters every 3000,carbon every 6 months membranes are on a time schedule of every 36 months.. i haven't changed my pre filter yet and its been 6 months..just got to the 1200 gallon mark. it makes sense bc I'm running a 75 gallon mixed reef with a 30 sump. i do a 10 gallon water change per week and fill up my 10 gallon ato tank at the same time using about 9 gallons per week total use about 20 gallons a week… i use to do 20 gallon water changes a week at first… keep in mind i have it monitoring after the booster pump but before the very first filter… definitely an investment long term due to the savings in just filter use.

Looks goodBy BobbyT on 12/8/2013

BobbyT would recommend this product to a friend

I think this is a very important device to install on any RO unit.
Everything is working great so far

I would highly recommend for someone that has muliple statages of filter to change a different times.By Kenneth on 11/9/2013

Kenneth would recommend this product to a friend

i highly recommend this tool. It helps to keep track of how much water you are going through, so no more guessing on when to change the filter or how much life you got out of the filter. You can setup a separate checker for each of your stages. I have color changing DI so i know when it needs to be changed, but I still like to know how many gallon of DI water was produced so that I can keep track of my expenses and how the system is functioning.
a

DOABy Russel on 10/29/2013

Russel wouldn't recommend this product to a friend

The unit has two modes - timer and volumizer. Obviously the more desirable function for the price is the volumizer. Unfortunately the unit I received never detects any flow rate. I was able to get it to detect the flow meter by reinserting the battery - but no matter where I put the unit on my RODI system, it never detects any flow. I even tried blowing air into the flow meter just to ensure the impeller worked - heard it spin, but no reading. Contacted manufacturer to see what the next steps are.... probably going to have to pay return shipping.

Would this work with the water saver upgrade kit? Will the volumizer get confused?

Question by: Kevin on Dec 23, 2013 6:12:00 AM

Hi Kevin,
The volumizer only records the water going into the RO/DI unit and it will continue to do so. Since your filters are rated for the amount of total water they are processing and that will remain the same, the volumizer is still good to go (you'll just find that of that total water processed more of it is product water vs waste now so you don't have to run the unit as long to get the same amount of product water). Hope that makes sense!